Downloading: Approach of Data Security in Local Network Using Distributed Firewalls
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064



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Approach of Data Security in Local Network Using Distributed Firewalls

J. Lavanya, R. V. Krishnaiah

Abstract: Firewall is a device or set of instruments designed to permit or deny network transmissions based upon a set of rules and regulation is frequently used to protect networks from unauthorized access while permitting legitimate communications to pass or during the sensitive data transmission. Distributed firewalls allow enforcement of security policies on a network without restricting its topology on an inside or outside point of view. Use of a policy language and centralized delegating its semantics to all members of the networks domain support application of firewall technology for organizations, which network devices communicate over insecure channels and still allow a logical separation of hosts in- and outside the trusted domain. We introduce the general concepts of such distributed firewalls, its requirements and implications and introduce its suitability to common threats on the Internet, as well as give a short discussion on contemporary implementations.

Keywords: Network Security, Security Policy, Pull technique, Push technique, Policy distribution



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